feat: add external-snapshotter

cluster/core/infrastructure/external-snapshotter/crds.yaml

@@ -0,0 +1,38 @@
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta1
+kind: GitRepository
+metadata:
+  name: external-snapshotter-source
+  namespace: flux-system
+spec:
+  interval: 30m
+  url: https://github.com/kubernetes-csi/external-snapshotter.git
+  ref:
+    tag: v4.0.0
+  ignore: |
+    # exclude all
+    /*
+    # include deploy crds dir
+    !/client/config/crd
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta1
+kind: Kustomization
+metadata:
+  name: external-snapshotter-crds
+  namespace: flux-system
+spec:
+  interval: 15m
+  prune: false
+  sourceRef:
+    kind: GitRepository
+    name: external-snapshotter-source
+  healthChecks:
+    - apiVersion: apiextensions.k8s.io/v1
+      kind: CustomResourceDefinition
+      name: volumesnapshotclasses.snapshot.storage.k8s.io
+    - apiVersion: apiextensions.k8s.io/v1
+      kind: CustomResourceDefinition
+      name: volumesnapshotcontents.snapshot.storage.k8s.io
+    - apiVersion: apiextensions.k8s.io/v1
+      kind: CustomResourceDefinition
+      name: volumesnapshots.snapshot.storage.k8s.io

cluster/core/infrastructure/external-snapshotter/kustomization.yaml

@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - crds.yaml

cluster/core/infrastructure/kustomization.yaml

@@ -3,6 +3,7 @@ kind: Kustomization
 resources:
   - cert-manager
   - descheduler
+  - external-snapshotter
   - flux
   - intel-gpu-plugin
   - kube-prometheus-stack